[Bug 1950996] Re: Missing all modules for usb nics in initrd which makes PXE boot impossible

[Tommy Nevtelen]

* Mount the iso, find the kernel modules alternatively install the kernel modules for the same kernel on your ws.
* Unpack the initrd
* Copy over kernel/drivers/net/usb
* Repack initrd

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https://bugs.launchpad.net/bugs/1950996

Title:
  Missing all modules for usb nics in initrd which makes PXE boot
  impossible

Status in initramfs-tools package in Ubuntu:
  Fix Released
Status in initramfs-tools source package in Focal:
  Confirmed
Status in initramfs-tools source package in Hirsute:
  Confirmed
Status in initramfs-tools source package in Impish:
  Won't Fix
Status in initramfs-tools source package in Jammy:
  Fix Released

Bug description:
  initrd taken from the live iso for PXE boot does not contain USB NIC
  drivers which makes PXE installation/netboot impossible via usb.

  This is the case on 20.04 server iso (both hwe and normal
  kernel/initrd) and desktop iso.

  "kernel/drivers/net/usb" is empty and needs to be included in the
  initramfs build.

  As most modern thin laptops lack physical rj45 ethernet this is a big
  issue.

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: initramfs-tools 0.136ubuntu6.6
  ProcVersionSignature: Ubuntu 5.8.0-64.72-generic 5.8.18
  Uname: Linux 5.8.0-64-generic x86_64
  ApportVersion: 2.20.11-0ubuntu27.21
  Architecture: amd64
  CasperMD5CheckResult: skip
  CurrentDesktop: ubuntu:GNOME
  Date: Mon Nov 15 16:47:45 2021
  PackageArchitecture: all
  SourcePackage: initramfs-tools
  UpgradeStatus: Upgraded to focal on 2020-05-11 (552 days ago)

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